I know voicemail notifications can't be swiped away even in stock Android (it's my phone, why can't I?) but the stock Android workaround is to force kill the Phone app. It restarts and the notification is cleared. But the kill button on the process in the Axon 7 settings is disabled. ZTE, please enable us to remove voicemail notifications, at least via killing the Phone/Phone Services app. Listening to the voicemail doesn't always clear the notification. Of course the notification should just be swipable. My voicemails aren't that important.